Silo-ladder.



E. A. BERRY.

SILO LADDER.

APPLICATION FILED MAY 3. 1915.

1,162,743, Patented Dec. 7, 1915.

A TTORA/EV COLUMBIA PLANOGRAP" c0., WASHINGTON, D. c.

EARLE A. BERRY, OF KANSAS CITY, MISSOURI.

SILO LADDER.

Specification of Letters Patent.

Patented Dec. 7, 1915.

Application filed. May 3, 1915. Serial No. 25,448.

Kansas City, in the county of ackson and State of Mlssouri, have invented certain.

new and useful Improvements in Silo-Ladders; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the let ters and figures of reference marked thereon, which form a part of this specification.

My invention relates to silos, and more particularly to a silo of the stave type wherein vertically arranged staves are held in proper relation to maintain the contour of the silo by circumferentially arranged bands or hoops; the principal object of the present invention being to provide an improved ladder for reaching the upper portion of the silo to adjust the supply tube or to reach any vertical point of thesilo to facilitate the adjustment of the hoops. In accomplish ing this object I have .provided improved details of structure, the preferred forms of which are illustrated in the accompanying drawings, wherein Figure I is a perspective view of a silo equipped with a ladder comprising my improvements. Fig. II is an enlarged detail perspective of part of the silo, showing the hoop and the application of a ladder section thereto.

Referring more in detail to the parts 1 designates a silo of any ordinary stave construction, and having hoops 2 that are held together by the adjusting devices 3,-

which may comprise turnbuckles or the like; the body of the silo being topped by a roof it having the usual dormer window 5through which the end of the filling tube may be projected.

Attached to the hoops 2, or to as many of them as may be necessary, are ladder sections 6, each of which comprises upper legs 7 having hooked ends 8 that may be turned under the hoops 2 and are of suflicient length to space the body portion 9 away from the silo a suitable distance for providing foot room between the rungs 10 and the silo; the lower portion of the section being equipped with legs 11 having flanges 12 that lie against the silo and are provided with apertures 13 through which the screws 14 may be projected to securely attach the ladder section in place. The ladder sectlon 1s preferably 0t skeleton construction and formed of suitable cast metal; the stepped part comprising the rungs 10 and side standards 15 for spacing the rungs; and the upper legs 7 being preferably flattened at their ends in order that they may be slipped easily between the staves and hoops. As the hoops are, in ordinary use, placed a specified dis tance apart in the silo, the ladder sections may be made of such length that the upper rungs 10 are located in substantial hori zontal alinement with the hoops to which the sections are attached, and the lower rungs 10 placed midway between the hoops, in this way providing steps of equal length between the rungs on the same sections and on adjoining sections.

\Vith a ladder of this construction the independent sections may be applied to the but actually serve to maintain the hoops in place owing to the anchorage of the lower portions of the ladder sections.

A silo may be equipped with a ladder of this construction at any point about the circumference of the structure, so that if a silo is arranged close to a barn or other building, with the opening facing and closely adjacent the building, the ladder may be arranged on the opposite side so that easy access may be had to the filling window or to the hoops, when it is necessary to adjust the latter.

Having thus described my invention, what I claim as new therein and desire to secure by Letters-Patent, is

1. The combination with a body having encircling hoops, of a ladder section comprising a rung portion and legs extending inwardly from the rung portion and having upturned books at their inner ends adapted to extend between a hoop and the elements of the body, with the ends of the hooks overlying the hoop, the rung portion having spacing legs at its lower end engaging the face of the structure below the hoop, and means for securing the lower legs to the structure.

2. The combination with a structure having one or more encircling hoops, of a ladder section having inturned legs at its upper and lower ends, the ladder section con sisting of two rungs, and spacing members,

the top rung having inturned legs, the said legs having upturned hooks at their inner ends adapted to engage the hoops and partly encircle the same; the spacmg members being integral with the rungs; the lower rung 15 having lnturned legs and the said legs hear EARLE A. BERRY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

7 Washington, I). C. p i r I aflix my signa- 

